سنن النسائي

It was narrated that Al-Bara bin 'Azib said: "The Messenger of Allah (ﷺ) addressed us on the Day of Sacrifice and said: 'whoever prays as we pray nand offers the sacrtifice as we do, has done the rituals properly. Whoever offered the sacrifice before the prayer, that is just a sheep for meat." Abu Burdah said: 'O Messengers of Allah, by Allah, I offered my sacrifice before I went out to pray. I knew that this day is a day of eating and drinking, so I hastened to eat and to feed my family and my neighbors.' The Messenger of Allah (ﷺ) said: 'The Messenger of Allah (ﷺ) said; 'That was just a sheep for meat.' He said: 'I have a Jadh'ah she-goat that is better than two sheep for meat; will it suffice for me (as a sacrifice)?' He said: 'Yes, but it will never suff8ice for anyone after you."' (Sahih )